Property me a better (not newer) installed graphics card (NVidia GeForce 8800GT, 512MB GDDR3), had previously AMD Radeon 5570 (1GB DDR2). Have initially (with the old graphics card) uninstall the Catalyst drivers, installed the other graphics card and in safe mode, both the driver radicals, as well as the NVidia driver installed. I then restarted the computer, the Windows logo with "Windows starts came on and suddenly the screen went black. When restarting the booster is proposed.
Intel Celeron G1840 @ 2.8GHz;
ASRock H81M-DGS R2.0;
2x 4GB Crucial Ballistix @ 1600MHz;
Samsung 256GB SSD 840EVO and another 320GB HDD;
430 Watt BeQuiet! Power supply;
Windows 7 Professional 64-bit.
All cables are connected properly. What can I do?